2015-03-06 19:08:47 +00:00
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/*
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2017-05-19 22:24:23 +00:00
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* Copyright (C) 2013-2017 microG Project Team
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2015-03-06 19:08:47 +00:00
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.microg.gms.common;
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2019-04-22 17:51:40 +00:00
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import android.app.ActivityManager;
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2016-11-20 18:37:13 +00:00
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import android.app.PendingIntent;
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2015-03-06 19:08:47 +00:00
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import android.content.Context;
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import android.content.pm.PackageInfo;
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import android.content.pm.PackageManager;
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import android.content.pm.Signature;
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2016-01-12 22:27:43 +00:00
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import android.os.Binder;
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2017-05-19 22:24:23 +00:00
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import android.support.annotation.Nullable;
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2016-01-12 22:27:43 +00:00
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import com.google.android.gms.Manifest;
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2015-03-06 19:08:47 +00:00
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import java.security.MessageDigest;
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import java.security.NoSuchAlgorithmException;
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import java.util.Arrays;
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2017-05-19 22:24:23 +00:00
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import java.util.HashMap;
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import java.util.Map;
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2015-03-06 19:08:47 +00:00
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2016-11-20 18:37:13 +00:00
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import static android.os.Build.VERSION.SDK_INT;
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2016-04-14 19:51:21 +00:00
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import static org.microg.gms.common.Constants.GMS_PACKAGE_NAME;
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2016-01-12 22:27:43 +00:00
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import static org.microg.gms.common.Constants.GMS_PACKAGE_SIGNATURE_SHA1;
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2015-03-06 19:08:47 +00:00
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public class PackageUtils {
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2016-01-12 22:27:43 +00:00
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2017-05-19 22:24:23 +00:00
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private static final String GOOGLE_PLATFORM_KEY = GMS_PACKAGE_SIGNATURE_SHA1;
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private static final String GOOGLE_APP_KEY = "24bb24c05e47e0aefa68a58a766179d9b613a600";
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private static final String GOOGLE_LEGACY_KEY = "58e1c4133f7441ec3d2c270270a14802da47ba0e"; // Seems to be no longer used.
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private static final String[] GOOGLE_PRIMARY_KEYS = {GOOGLE_PLATFORM_KEY, GOOGLE_APP_KEY};
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private static final Map<String, String> KNOWN_GOOGLE_PACKAGES;
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static {
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KNOWN_GOOGLE_PACKAGES = new HashMap<>();
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KNOWN_GOOGLE_PACKAGES.put("com.google.android.apps.classroom", "46f6c8987311e131f4f558d8e0ae145bebab6da3");
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KNOWN_GOOGLE_PACKAGES.put("com.google.android.apps.inbox", "aa87ce1260c008d801197bb4ecea4ab8929da246");
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KNOWN_GOOGLE_PACKAGES.put("com.google.android.apps.playconsole", "d6c35e55b481aefddd74152ca7254332739a81d6");
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KNOWN_GOOGLE_PACKAGES.put("com.google.android.apps.travel.onthego", "0cbe08032217d45e61c0bc72f294395ee9ecb5d5");
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KNOWN_GOOGLE_PACKAGES.put("com.google.android.apps.tycho", "01b844184e360686aa98b48eb16e05c76d4a72ad");
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2018-09-15 19:43:48 +00:00
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KNOWN_GOOGLE_PACKAGES.put("com.google.android.contacts", "ee3e2b5d95365c5a1ccc2d8dfe48d94eb33b3ebe");
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2017-05-19 22:24:23 +00:00
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KNOWN_GOOGLE_PACKAGES.put("com.google.android.wearable.app", "a197f9212f2fed64f0ff9c2a4edf24b9c8801c8c");
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2017-06-25 23:58:04 +00:00
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KNOWN_GOOGLE_PACKAGES.put("com.google.android.apps.youtube.music", "afb0fed5eeaebdd86f56a97742f4b6b33ef59875");
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2018-02-14 20:01:09 +00:00
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KNOWN_GOOGLE_PACKAGES.put("com.google.android.vr.home", "fc1edc68f7e3e4963c998e95fc38f3de8d1bfc96");
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2017-05-19 22:24:23 +00:00
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KNOWN_GOOGLE_PACKAGES.put("com.google.vr.cyclops", "188c5ca3863fa121216157a5baa80755ceda70ab");
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KNOWN_GOOGLE_PACKAGES.put("com.waze", "35b438fe1bc69d975dc8702dc16ab69ebf65f26f");
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2018-10-02 14:46:31 +00:00
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KNOWN_GOOGLE_PACKAGES.put("com.google.android.apps.wellbeing", "4ebdd02380f1fa0b6741491f0af35625dba76e9f");
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2017-05-19 22:24:23 +00:00
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}
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public static boolean isGooglePackage(Context context, String packageName) {
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String signatureDigest = firstSignatureDigest(context, packageName);
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if (signatureDigest == null) return false;
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if (Arrays.asList(GOOGLE_PRIMARY_KEYS).contains(signatureDigest)) return true;
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if (!KNOWN_GOOGLE_PACKAGES.containsKey(packageName)) return false;
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return KNOWN_GOOGLE_PACKAGES.get(packageName).equals(signatureDigest);
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2016-01-12 22:27:43 +00:00
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}
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public static void assertExtendedAccess(Context context) {
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if (!callerHasExtendedAccess(context))
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throw new SecurityException("Access denied, missing EXTENDED_ACCESS permission");
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}
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public static boolean callerHasExtendedAccess(Context context) {
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String[] packagesForUid = context.getPackageManager().getPackagesForUid(Binder.getCallingUid());
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2016-04-14 19:51:21 +00:00
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if (packagesForUid != null && packagesForUid.length != 0) {
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for (String packageName : packagesForUid) {
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2017-05-19 22:24:23 +00:00
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if (isGooglePackage(context, packageName) || GMS_PACKAGE_NAME.equals(packageName))
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2016-04-14 19:51:21 +00:00
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return true;
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}
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}
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return context.checkCallingPermission(Manifest.permission.EXTENDED_ACCESS) == PackageManager.PERMISSION_GRANTED;
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2016-01-12 22:27:43 +00:00
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}
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2015-03-06 19:08:47 +00:00
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public static void checkPackageUid(Context context, String packageName, int callingUid) {
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String[] packagesForUid = context.getPackageManager().getPackagesForUid(callingUid);
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if (packagesForUid != null && !Arrays.asList(packagesForUid).contains(packageName)) {
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throw new SecurityException("callingUid [" + callingUid + "] is not related to packageName [" + packageName + "]");
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}
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}
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public static void checkPackageUid(Context context, String packageName, int callerUid, int callingUid) {
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if (callerUid != 0 && callerUid != callingUid) {
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throw new SecurityException("callerUid [" + callerUid + "] and real calling uid [" + callingUid + "] mismatch!");
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}
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checkPackageUid(context, packageName, callingUid);
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}
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2017-05-19 22:24:23 +00:00
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@Nullable
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2015-03-06 19:08:47 +00:00
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public static String firstSignatureDigest(Context context, String packageName) {
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PackageManager packageManager = context.getPackageManager();
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final PackageInfo info;
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try {
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info = packageManager.getPackageInfo(packageName, PackageManager.GET_SIGNATURES);
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} catch (PackageManager.NameNotFoundException e) {
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2017-05-19 22:24:23 +00:00
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return null;
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2015-03-06 19:08:47 +00:00
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}
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if (info != null && info.signatures != null && info.signatures.length > 0) {
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for (Signature sig : info.signatures) {
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String digest = sha1sum(sig.toByteArray());
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if (digest != null) {
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return digest;
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}
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}
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}
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return null;
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}
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2019-04-22 17:51:40 +00:00
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@Nullable
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public static String packageFromProcessId(Context context, int pid) {
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ActivityManager manager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
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if (manager == null) return null;
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for (ActivityManager.RunningAppProcessInfo processInfo : manager.getRunningAppProcesses()) {
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if (processInfo.pid == pid) return processInfo.processName;
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}
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return null;
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}
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2016-11-20 18:37:13 +00:00
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@SuppressWarnings("deprecation")
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public static String packageFromPendingIntent(PendingIntent pi) {
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2016-12-02 15:31:01 +00:00
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if (pi == null) return null;
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2016-11-20 18:37:13 +00:00
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if (SDK_INT < android.os.Build.VERSION_CODES.JELLY_BEAN_MR1) {
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return pi.getTargetPackage();
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} else {
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return pi.getCreatorPackage();
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}
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}
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2015-03-06 19:08:47 +00:00
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public static String sha1sum(byte[] bytes) {
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MessageDigest md;
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try {
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md = MessageDigest.getInstance("SHA1");
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} catch (final NoSuchAlgorithmException e) {
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return null;
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}
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if (md != null) {
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bytes = md.digest(bytes);
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if (bytes != null) {
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StringBuilder sb = new StringBuilder(2 * bytes.length);
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for (byte b : bytes) {
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sb.append(String.format("%02x", b));
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}
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return sb.toString();
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}
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}
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return null;
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}
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public static int versionCode(Context context, String packageName) {
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try {
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return context.getPackageManager().getPackageInfo(packageName, 0).versionCode;
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} catch (PackageManager.NameNotFoundException e) {
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2016-09-17 00:22:04 +00:00
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return -1;
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2015-03-06 19:08:47 +00:00
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}
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}
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2018-08-31 10:39:56 +00:00
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public static String versionName(Context context, String packageName) {
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try {
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return context.getPackageManager().getPackageInfo(packageName, 0).versionName;
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} catch (PackageManager.NameNotFoundException e) {
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return null;
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}
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}
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2015-03-06 19:08:47 +00:00
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}
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